Agile and Scrum are popular methodologies used in IT projects to improve the agility, speed, and quality of software development and project management.
Agile is an iterative approach to software development and project management. It emphasizes flexibility, collaboration, and continuous improvement. Agile was introduced as a response to the traditional waterfall methodology, which often proved too rigid for rapidly changing IT projects.
Agile is based on the following principles (from the Agile Manifesto):
In an Agile environment, short development cycles (sprints) are used, usually lasting two to four weeks. Each team starts by prioritising work in a backlog and ends each sprint with working software that is presented to the customer. After each iteration, a retrospective follows, in which the team reflects on what went well and what could be improved.